Spray syringe



June 10, 1924. 1,497,264

l. Q. GURNEE ET AL SPRAY' SYRINGE Filed Oct. 20, 1922 3512i, theirSMOM/w16,

Patented June 10, 1924.

UNTE STATES PATENT OFFCE.

y ISAAC Q. GURNEE, OF BUTLER, NEW JERSEY, AND ALBERT A. SMITH, OF NEW AVEN, CONNECTICUT, ASSIGNOBS TO SUPERIOR HARD RUBBER COMPANY, OF BUTLER,NEW JERSEY, A CORFORATION OF NEW JERSEY.

SPRAY SYRINGE.

Application filed October 20, 1922. Serial No. 595,785.

Toall whom it may concern Be it known' that we, ISAAC Q. GURNEE andALBERT A. SMITH, citizens of the United States, residing at Butler, inthe count-y of .Morris and State of New Jersey, and at ments in SpraySyringes, of whiohthe fol-` lowing is a specification.

`This invention relates to an improved syringe; particularly a syringeintended for rigating and flushing out the internal cavities andpassages of the human body.

An object of this invention is to provide a syringe capable ofdischarging a liquid in the formof a spiral spray, and of suchconstruction that the inside parts through which extend the outlet ductsof the delivery nozzle of the syringe are tightly and permanentlysecured to the nozzle in such a mannei' that all risk of their gettingloose and becoming detached is entirely obviated, the nozzle and all itsparts and in fact the complete syringe being constituted of a materialthat will at no point afford a lodgment to dust, dirt or any otherforeign substances,

either within or upon the surface.

. Otherobiects and advantages of this invention will appear in thefollowing description, taken ywith the accompanying drawings, uponwhichrthe preferred embodiment of our invention is illustrated, and

. the novel features of our invention are defined in the appendedclaims. But this disclosure vis explanatory only and we may make changesfalling within the scope and spirit of the invention to the full extentindicated by the broad and general meanings of the terms in which theclaims are expressed.

On the drawings:

Figure 1 is a side view of a syringe of the type to which our inventionbelongs;

Figure 2 is a side elevation on a larger scale of the delivery nozzle ofthe syringe; Figure 3 is a front View of said nozzle;

Figure 4 is a section on the line 4-'4 of Figure 3;

Figure 5 is a front elevation of the inside core of the nozzle, carryingthe outlet ducts and having a deflector or head for directing the jetsfrom the. ducts away from the axis of the nozzle.

Figure 6 is a side view of said core; and

Figure 7 a rear view thereof.

The same numerals identify the same parts throughout.

Intlie particular description of the drawings we use the numeral r1 toindicate a tube or pipe, preferably of hard rubber, bearing at one end arubber bulb or reservoir2, and at the other a delivery nozzle includinga tip 3. The bulb 2 can be secured to the pipe 1 by having a neck whichis slipped over a flange, not shown, at the extremity'of'the tube 1, inthe usual way, and the tip 3 at the opposite extremity is preferablydetachable so that it can be dismounted for inspection and cleaning.

This tip 3 has a form of a tubular section from one end of whichprojects a reduced threaded neck 4; there being a shoulder 5 at theunion of lthe neck 4with the body of the tip so that when the tip isscrewedk into the end of the tube 1, which is provided with internalthreads to be engaged by the threads on the outside of the neck 4, the

shoulder 5 will abut the extremity of 'the' tube 1 and form a'joint orseam which can be made as tight as necessary. Through the n neck 4extends a` bore 6 whichy may be approximately of the same diameter asthe bore through the tube 1, and inside the body of the tip-3 is alarger bore 7 which communicates with the bore 6 and which extends fromthe open mouth of the tip yinwardr as far as the internal shoulder 8.The tip 3 receives and has securedtherein a core 9 rofv suchconstruction that Iwhen the bulb 2 is filled with liquid and thencompressed,lthe liquid will be expelled from the syringe around theinside of the rim of the tip 3, and.

in the form of a number of separate streamswhich take a helicaldirection and at the same time fly away from the axis of the tip, andunite to form a voluminous spray, globular in form, and consisting of anumber of spiral jets of liquid that will sufficiently reach and cleanseall the parts to which the liquid is supplied. The tip 3 and core 9constitute the outlet nozzle of the syringe.

One part of the core 9 is in the form of a cylindrical disk or button 10of less thickness than the distance between the shoulder 8 and the rimat the open mouth of the tip 3. In the cylindrical surface of this disk10 are fashioned a number of cuts or recesses 11,

these recesses 11 being spaced at equidistant intervals apart around thecircumference of the disk, and being diagonally arranged; so that theywill not be parallel with the axis of the tip, but Will extend spirallywith respect thereto when the core is thrust in cent end of the bore 6and at the opposite side of the disk 10 the core will be provided with ahead 13 in central position and of larger diameter than the rprojection12. This head presents to the adjacent face of the disk l0 a conicalsurface 14 so that as the separate streams of liquid escape from theoutlet ducts 11 they will strike the surface 14 and be directed awayfrom the axis of the nozzle.k The head 13 and projection 12 may be inone piece, the projection making a shank or neck for the head, andpassing through a central opening in the disk 10.

The tip 3kreceives the core 9 in such a manner that all risk of the core9 becoming loose in the tip or detached is completely obviated. As shownin Figure 4C, the disk 10 will occupy such a position that there will bea small space between the shoulder 8 and the adjacent face of the disk;and the projection 12, which will be of less diameter than the inside ofthe bore 6, will just enter the mouth of thebore 6. /Vith the tip 3 andcore 9 constructed of hard rubber, for example, the tip 3 after beingmolded can be softened; then the core 9 can be pushed into the mouth ofthe tip the required distance. When so inserted the` core 9 will be inhardened condition and will snugly fit the tip 3, which is usuallysoftened by heating and therefore expanded somewhat. After receiving thecore 9, thetip is then cooled and hardened again, and the contractionwhich it undergoes makesv it. engage the rcore so tightly that the corecannot afterwards come out. In a similar manner the disk 10 can beshrunken the the projection 12. t r

The syringe .can be provided withthe shank, making usual rubber guard15, mounted on the pipe 1 in front of the bulb 2. To fill the syringe,the nozzle can simply be taken olf and the bulb collapsed so as to allowit to draw in through the tube a full charge of liquid. This methodenables the bulb to be filled more quickly, and then the replacement ofthe nozzle makes the syringe ready for use. Pressure upon the bulb Q,will force the liquid through the pipe 1 and bore 6 into the enlargedbore 7 of the nozzle, between the disk 10 and the shoulder 8. There theliquid will spread out and flow through the ducts 11; and as it escapesfrom these ducts at high velocity, the action of the conical surface y14will force the jets outward away from the axis of the nozzle so that the'jets will have both a spiral direction and an expanding tendency, andthus give the most thorough cleansing action, The projection 12 acts insome degree to direct the water outward from the axis of the tip, as itflows from the bore 6 into the bore 7, past the shoulder 8; and thus tothe inner ends of the ducts or recesses 11.

Our syringe is particularly adopted for vaginal use but can of course bemade for other passages of the body as well.

Having described our invention, what we believe to be new and desire toSecure and protect by Letters Patent of the United States is: f

A nozzle for a spray syringe comprising a removable tip having a boreterminating at a shoulder therein, a neck attached tothe tip and havinga relatively smaller bore therethrough beginning at said shoulder, adisk xed inside the first-named bore and spaced from the shoulder, theperiphery of the disk tightly engaging the inside of the tip, the diskhaving recesses in its circumference to provide spiral ducts, and a headpresenting a conical deflecting surface to the outlet ends of said ductsand having a shank extending through the disk and projecting into thebore of lsaid neck.

ln witness whereof, we have signed our names t'o'this specilication this10th day of @ctober 1922. v

Isaac o. GURNEE. ALBERT a. sMrTH;

